Analysis
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max time kernel
151s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
02-12-2022 00:33
Static task
static1
Behavioral task
behavioral1
Sample
86b3d6b47760e113e3395f3d69b6ff7638de5f050537e5d0a3706c1248624958.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
86b3d6b47760e113e3395f3d69b6ff7638de5f050537e5d0a3706c1248624958.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
86b3d6b47760e113e3395f3d69b6ff7638de5f050537e5d0a3706c1248624958.exe
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Size
112KB
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MD5
768950a8bf82b9b83739d6aea5fc8b6f
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SHA1
a2e08cc2de87f0c5bb24737adb07036b1048a450
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SHA256
86b3d6b47760e113e3395f3d69b6ff7638de5f050537e5d0a3706c1248624958
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SHA512
bd3f0edacda854e21c66ad89e6983ef94165f624ff8edcc3ff301237c31031f77589f96ed79f581a70658d1f51c25f42942378570011367995cfbb00a40794ff
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SSDEEP
1536:HfodiIiNE6eXTzQ+64OM2OMATZgJ6rMhe6rWhA3KaHmKq7I8kIi/uz:wd/6eXo+TrMhe6rM7rxz
Score
10/10
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" niacuk.exe Set value (int) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 86b3d6b47760e113e3395f3d69b6ff7638de5f050537e5d0a3706c1248624958.exe -
Executes dropped EXE 1 IoCs
pid Process 4840 niacuk.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation 86b3d6b47760e113e3395f3d69b6ff7638de5f050537e5d0a3706c1248624958.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niacuk = "C:\\Users\\Admin\\niacuk.exe /s" niacuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niacuk = "C:\\Users\\Admin\\niacuk.exe /v" 86b3d6b47760e113e3395f3d69b6ff7638de5f050537e5d0a3706c1248624958.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\ niacuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niacuk = "C:\\Users\\Admin\\niacuk.exe /d" niacuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niacuk = "C:\\Users\\Admin\\niacuk.exe /k" niacuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niacuk = "C:\\Users\\Admin\\niacuk.exe /q" niacuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niacuk = "C:\\Users\\Admin\\niacuk.exe /z" niacuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niacuk = "C:\\Users\\Admin\\niacuk.exe /r" niacuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niacuk = "C:\\Users\\Admin\\niacuk.exe /t" niacuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niacuk = "C:\\Users\\Admin\\niacuk.exe /o" niacuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niacuk = "C:\\Users\\Admin\\niacuk.exe /f" niacuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niacuk = "C:\\Users\\Admin\\niacuk.exe /u" niacuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niacuk = "C:\\Users\\Admin\\niacuk.exe /g" niacuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niacuk = "C:\\Users\\Admin\\niacuk.exe /l" niacuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niacuk = "C:\\Users\\Admin\\niacuk.exe /x" niacuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niacuk = "C:\\Users\\Admin\\niacuk.exe /h" niacuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niacuk = "C:\\Users\\Admin\\niacuk.exe /n" niacuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niacuk = "C:\\Users\\Admin\\niacuk.exe /v" niacuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niacuk = "C:\\Users\\Admin\\niacuk.exe /i" niacuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niacuk = "C:\\Users\\Admin\\niacuk.exe /w" niacuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niacuk = "C:\\Users\\Admin\\niacuk.exe /m" niacuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niacuk = "C:\\Users\\Admin\\niacuk.exe /p" niacuk.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 86b3d6b47760e113e3395f3d69b6ff7638de5f050537e5d0a3706c1248624958.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niacuk = "C:\\Users\\Admin\\niacuk.exe /y" niacuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niacuk = "C:\\Users\\Admin\\niacuk.exe /a" niacuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niacuk = "C:\\Users\\Admin\\niacuk.exe /e" niacuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niacuk = "C:\\Users\\Admin\\niacuk.exe /b" niacuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niacuk = "C:\\Users\\Admin\\niacuk.exe /c" niacuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\niacuk = "C:\\Users\\Admin\\niacuk.exe /j" niacuk.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 5076 86b3d6b47760e113e3395f3d69b6ff7638de5f050537e5d0a3706c1248624958.exe 5076 86b3d6b47760e113e3395f3d69b6ff7638de5f050537e5d0a3706c1248624958.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe 4840 niacuk.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 5076 86b3d6b47760e113e3395f3d69b6ff7638de5f050537e5d0a3706c1248624958.exe 4840 niacuk.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 5076 wrote to memory of 4840 5076 86b3d6b47760e113e3395f3d69b6ff7638de5f050537e5d0a3706c1248624958.exe 82 PID 5076 wrote to memory of 4840 5076 86b3d6b47760e113e3395f3d69b6ff7638de5f050537e5d0a3706c1248624958.exe 82 PID 5076 wrote to memory of 4840 5076 86b3d6b47760e113e3395f3d69b6ff7638de5f050537e5d0a3706c1248624958.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\86b3d6b47760e113e3395f3d69b6ff7638de5f050537e5d0a3706c1248624958.exe"C:\Users\Admin\AppData\Local\Temp\86b3d6b47760e113e3395f3d69b6ff7638de5f050537e5d0a3706c1248624958.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5076 -
C:\Users\Admin\niacuk.exe"C:\Users\Admin\niacuk.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:4840
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
112KB
MD5c599b6af3bb908d89c578beeba01a1c5
SHA1c6759a244f1aa3114a799f1854451802a7b105d8
SHA25601d58a6fec06195fae4688129aba4eac9ef1d214b799a8c41426835ba4b0dff9
SHA5123015b1cb438817894270b49bcecc0f7be662ff5ceb9c023de5b36a8e712d0147d02fd070b93878a2a11ffe2ef50c6fdb1b7c9912cc949b37cfd74bcdf120f290
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Filesize
112KB
MD5c599b6af3bb908d89c578beeba01a1c5
SHA1c6759a244f1aa3114a799f1854451802a7b105d8
SHA25601d58a6fec06195fae4688129aba4eac9ef1d214b799a8c41426835ba4b0dff9
SHA5123015b1cb438817894270b49bcecc0f7be662ff5ceb9c023de5b36a8e712d0147d02fd070b93878a2a11ffe2ef50c6fdb1b7c9912cc949b37cfd74bcdf120f290